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Found 8 results

  1. Hello, I was wondering if someone could help me troubleshoot an issue. I have created a GSS spreadsheet with water quality data for multiple samples and locations to create XY plots, however the Gtplot program keeps crashing when I prompt the request. I am able to create Durov diagrams, piper plots etc, the only type of plot/diagram which keeps crashing is the XY series type. I am sometimes able to convert another type of diagram into a XY series plot, in which case it no longer crashes. I have attached the GSS spreadsheet I used. Note - we inserted a blank sample at the bottom in order t
  2. Hi All, I've been attempting to add water quality measures such as Total Nitrogen and Total Phosphorus to GSS. As these measures are an aggregate of different constituents I cannot specify a molar mass. I have attempted to add them as a user-defined analyte and specified concentration and the units in mg/L. However, when I go to add these analytes to GSS the unit's default to mmol/l. I'm sure I've been able to add these measures in the past but have come up short. Any tips/guidance would be much appreciated. Kind regards, Clint
  3. Hi GWB Forum, I am trying to mix two seawater samples with the same chemistry, but different temperatures and calculate a flash diagram for aragonite saturation state using React following the "Fluid Mixing and Scaling" instructions. I have also calculated the endmember fluid Log(Q/K) values for aragonite using GSS. I am getting a very different answer for the end member compositions depending on which approach I take. I checked that I am using the same thermo database (phreeqpitz) for both, and am having trouble understanding why they are so different. I've attached my React f
  4. Hi All, It has been a few years since I last used GWB. I'm looking forward to getting started again! I've been having a few difficulties with loading up a large number of user defined anlaytes. Specifically, I want to add the following: Site ID Abs. 440 nm B (mg/L) Ca (mg/L) Mg (mg/L) Na (mg/L) K (mg/L) SO4 (mg/L) Cl (mg/L) F (mg/L) I (mg/L) FeII (mg/L) MnII (mg/L) Si (mg/L) D.O. (mg/L) d13C-DIC (‰, V-PDB) DIC (mmol/L) DNPOC (mg/L) NPOC (mg/L) TOC (mg/L) SpC (us/cm) Total Hardness (mg/L, CaCO3) d18O-H2O (‰, V-SMOW) d2H-H2O (‰, V-SMOW) DKN (mg/L) TDN (mg/L) TKN (mg/L) TN (mg/L) ORP
  5. Hello Admin, if i am interested in a fO2-pH Predominance diagram of Fe of a speculated fluid with for example the following parameters: H2ASO4 as As = 50 mg/l SO4-- as S = 50 mg/l Fe++ as Fe = 10 mg/l Na++ = 39.34 g/kg Cl- = 60.66 g/kg T = 150 °C ive been using GSS to calculate the activities of specific species which i applied in Act2. For the GSS calculations i did not input any pH value since it will be my x-axis on my diagram. Now my question is if that is the correct procedure since of course using specific pH values in GSS gives me different activities of my species and thu
  6. Dear Brian, How are you? I hope that you are doing very well. I am writing to you because I need your help with GWB. First of all, let me briefly describe my experiment. I have done column percolation tests using natural contaminated soil. I packed the contaminated soil (mainly with heavy metals) in a 5 cm diameter and 30 cm height acrylic column and permeated it with CaCl2 solution 1 mM at a flow rate of 12 mL/h (the flow direction is from bottom to top). I collected around 15 samples (leachate) within 3-month period and analyzed them by ICP and IC (ion chromatography). I input all le
  7. Hello, Is there any indication of which database was drawn from when looking at an output file? Thanks! Michael
  8. Hi all, I have got a simple question regarding to mixing of multiple fluids. I’m sure that I must have missed something, so I just wanted to check. I have the composition of three end-member solutions (Solution 1, 2, 3) that would be mixed to produce composition of Solution 4. Say 20%, 30% and 50% of Solution 4 is from Solution 1, 2, 3 respectively. I have the composition of all Solution 1, 2, 3, 4. Essentially I would like to check the mixing fraction through React (at which I have calculated manually) to see whether it gives me a good match for the solution 4 composition. I wou
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